Airglow Measurements of Gravity Wave Propagation and Damping over Kolhapur (16.5°N, 74.2°E)

Simultaneous mesospheric OH and O  (1S) night airglow intensity measurements from Kolhapur (16.8°N, 74.2°E) reveal unambiguous gravity wave signatures with periods varying from 01 hr to 9 hr with upward propagation. The amplitudes growth of these waves is found to vary from 0.4 to 2.2 while propagat...

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Bibliographic Details
Published in:International journal of geophysics 2014-01, Vol.2014 (2014), p.1-9
Main Authors: Ghodpage, R. N., Taori, A., Patil, P. T., Gurubaran, S., Sharma, A. K., Nikte, S., Nade, D.
Format: Article
Language:English
Subjects:
Airglow
Altitude
Correlation
Damping
Emission
Emissions
Gravity
Gravity waves
Laboratories
Meteorology
Propagation
Wave propagation
Wavelengths
Wind shear
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Summary:Simultaneous mesospheric OH and O  (1S) night airglow intensity measurements from Kolhapur (16.8°N, 74.2°E) reveal unambiguous gravity wave signatures with periods varying from 01 hr to 9 hr with upward propagation. The amplitudes growth of these waves is found to vary from 0.4 to 2.2 while propagating from the OH layer (~87 km) to the O (1S) layer (~97 km). We find that vertical wavelength of the observed waves increases with the wave period. The damping factors calculated for the observed waves show large variations and that most of these waves were damped while traveling from the OH emission layer to the O (1S) emission layer. The damping factors for the waves show a positive correlation at vertical wavelengths shorter than 40 km, while a negative correlation at higher vertical wavelengths. We note that the damping factors have stronger positive correlation with meridional wind shears compared to the zonal wind shears.
ISSN:1687-885X
1687-8868
DOI:10.1155/2014/514937